209217550

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^2\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:290

約数の個数: 72

約数和(自身を含む): 419243256

約数和(自身を除く): 210025706

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 67, 95, 134, 173, 190, 335, 346, 361, 475, 670, 722, 865, 950, 1273, 1675, 1730, 1805, 2546, 3287, 3350, 3610, 4325, 6365, 6574, 8650, 9025, 11591, 12730, 16435, 18050, 23182, 24187, 31825, 32870, 48374, 57955, 62453, 63650, 82175, 115910, 120935, 124906, 164350, 220229, 241870, 289775, 312265, 440458, 579550, 604675, 624530, 1101145, 1209350, 1561325, 2202290, 3122650, 4184351, 5505725, 8368702, 11011450, 20921755, 41843510, 104608775, 209217550]

約数ペア:

[(1, 209217550), (2, 104608775), (5, 41843510), (10, 20921755), (19, 11011450), (25, 8368702), (38, 5505725), (50, 4184351), (67, 3122650), (95, 2202290), (134, 1561325), (173, 1209350), (190, 1101145), (335, 624530), (346, 604675), (361, 579550), (475, 440458), (670, 312265), (722, 289775), (865, 241870), (950, 220229), (1273, 164350), (1675, 124906), (1730, 120935), (1805, 115910), (2546, 82175), (3287, 63650), (3350, 62453), (3610, 57955), (4325, 48374), (6365, 32870), (6574, 31825), (8650, 24187), (9025, 23182), (11591, 18050), (12730, 16435)]